If you haven't seen the coloration that comes out of a bottomless portafilter, you are really missing out. This unique way to extract shots with the 58mm Bottomless Portafilter for Rocket Giotto and Rocket Cellini models offers a great view into the process as rich hues of brown come waterfalling out from underneath your brewhead unit.
How the 58mm Bottomless Portafilter Works
Lightly fill the portafilter basket to the top
Use your finger to gently even out the grounds
Lightly press the tamper into the grounds and find a good center point
Evenly apply approximately 30 lbs of pressure to the grounds
Tap the side of the portafilter to reveal loose grounds
Lightly tamp these loose grounds into place
Sit back and enjoy one of the coolest looking effects in espresso extraction
For this specific bottomless portafilter, the 58mm for rocket espresso seems more wide in size for the puck. I'm wondering for best amount of doze, how much should I doze? 18-20g? But when I tamp it, its literally hitting the bottom of the filter like its nothing because it doesn't seem like its a lot of coffee. Please help.
Best Answer:The basket that comes with this bottomless protafilter is actually meant for a triple shot of expresso - thus the amount of coffee needs to be adjusted accordingly. You can also remove the triple shot basket and replace it with singe or double shot baskets - and use the amount of coffee that you are used to using with these smaller baskets.
I haven't used mine in a long time, but I did find the same thing. I subsequently read somewhere that the bottomless portafilter is sized for a triple shot., not a double. Therefore I would think it might be more like 24-27g. I use 18g in the regular double portafilter.
Yes, this is also a problem I faced as well. There isn't enough room in the portafilter to hold a sufficient amount of un-tamped, ground coffee for a complete 3 shot puck prior to tamping. I did find a solution however - and it works every time for me. My Rocket machine came with a grey colored, long handle, plastic scoop for measuring coffee. One measured scoop of whole beans is sufficient for one shot of espresso. Now, remember this 58mm bottomless portafilter is a 3-shot capacity accessory.
Here are the steps I use:
TIP: You will need to use about a 25% larger grind setting on the grinder compared to the grind setting you use for the normal 2-shot portafilter. That's the other key to success with this 3-shot bottomless portafilter!
1) measure three scoops whole of beans (or the correct amount for 3-shots) and put them in your grinder. 2) place the bottomless portafilter under the grinder, start grinding and fill the portafilter, but stop short of filling it to the point of overflowing. 3) take the portafilter and knock the coffee down to the bottom by banging it down 2-3 times onto a block of wood (to protect your kitchen counter and prevent damaging your portafilter!) There will now be enough room for the remainder of your 3 scoops of coffee. 4) finish grinding the remainder of the of whole beans into your portafilter. 5) Level and Smooth out the coffee grinds using your normal method to make sure you will make a consistently dense puck! (I use the handle of my coffee scoop for this!) 6) tamp down the grinds to make your puck. I do it on a digital scale until I see about 24-26 lbs of force on the display
Your puck is now ready for extracting 3-shots of espresso.
I use the bottomless portafilter with my Rocket Gioto Evoluzione and Mazzer mini type-A grinder. Heres my formula: 19-20 grams of coffee, 30 lb tamp, ground so that this yields 2.5 oz double shot in the 25-30 second range. With my beans (Malabar Gold from Bean Central roaster in Nashville), even with a mid- grind shake of the portafilter to level, the ground coffee overflows and pyramids above the rim pre-tamp. It is well below the rim post tamp. The shots are picture- perfect. Hope this helps, Dave
I have never weighed my ground coffee when filling this portafilter, so I don't know about the weight. I do know that it does take seemingly quite a bit more coffee than normal. Shape of the basket is NOT tapered at the bottom like many baskets, so the tamper is going to go deeper for sure. I adjust the amount of coffee in the basket so it just levels off before tamping, and then after tamping rests below the basket edge about a millimeter - no more.
My 58mm isn't noticeably wider than my others. (I've just checked, to be sure!) But, like you, I've found that it wants a much bigger dose than my ordinary double spouts. I give it three generous shots'-worth. One way of doing it, if you don't want to give yourself too much of a caffeine overdose, is to treat yourself to a wasteful ristretto, and cut the shot off at a double. Otherwise, yes, you're gonna need a bigger shot glass...
You are right, it is wider than the standard portafilter. When I use the bottomless one, I just use 2 full scoops of ground coffee, like I do with the standard portafilter (using the scoop that came with my Rocket) and assume that this is enough coffee (I am sorry, I don't know what this dose weighs). As I recall, it doesn't come up to the line inside the portafilter after I tamp it down, but it is close
I use the bottomless portafilter with my Rocket Gioto Evoluzione and Mazzer grinder. Heres my formula: 19-20 grams of coffee, 30 lb tamp, ground so that this yields 2.5 oz double shot in the 25-30 second range. With my beans (Malabar Gold from Bean Central roaster in Nashville), the ground coffee overflows and pyramids above the rim pre-tamp, and well below post tamp. Hope this helps, Dave
The basket in that bottomless portafilter is actually for a triple shot. It's not wider, but deeper. I just took the basket out and used the one from the standard double portafilter. Instant perfect dosing & tamping.
Best Answer:I have a Rancilio bottomless portafilter that I got for my old Silvia. The folks at SCG told me that it would fit the Rocket. (I ended up getting the Rocket one to match aesthetics). So if the Silvia one fits your Rancilio machine, so should the Rocket.
From the answers below, it looks like this uses a triple basket...but why? Could we not use a double basket in this? I also have a strong preference for a ridgeless basket...can I use a ridgeless basket in here? On my current bottomless, I replaced the basket holder (wire) with a thicker gauge wire that holds ridgeless baskets well.
Best Answer:The bottomless ALLOWS for a triple basket, but it is not necessary to use a triple basket if you do not want to. You can certainly use a double basket if you choose and you can use a ridgeless basket as well
I'm curious as to the quality of the shot in regards to this specific portafilter. I have a V1 Silvia, and from what I see there are many 58mm portafilters that are bottomless. Other than the handle being the same, is there any difference in quality of the shot using this over say a Rocket bottomless portafilter on the Silvia V1? thanks!
Bottomless Portafilter for Rancilio Silvia - V3 Style
Best Answer:The important thing will be in the fit. Portafilters spend to be very brand-specific, and the tabs on the sides of the portafilter can not only be a different height and length, but also orientation, and may not create as nice of a seal. We have definitely found that the Rancilio branded bottomless portafilter creates a better seal with the Silvia, so it can push water through the coffee rather than leaking around the edges of the portafilter, degrading the quality of the shot. Hope this helps!
I have Delonghi Vintage Icona machine can I use this product with it? And if yes do you ship to the UK?
A shopper on Oct 17, 2014
Best Answer:Unfortunately I am not sure that this Bottomless Portafilter for Rocket machines will work for your DeLonghi unit, as portafilters are brand and machine specific due to their size, tabs and tab placement. Without testing I would not know if it will work for your machine. Unfortunately we don't ship internationally. Sorry I can't be of further assistance on this for you!
Best Answer:There are a few advantages to using a bottomless portafilter for extraction. One is that you are able to view the extraction as you brew in order to be sure that your tamp is even, since with a bottomless you can see that your espresso flows from the center of the bottom. Another is that you do not lose heat as the espresso travels through one or two spouts on a regular portafilter. And the biggest advantage is that you can often use a triple sized basket with a bottomless portafilter, since the bottom is open and can accommodate a deeper basket. This 58mm Bottomless Portafilter for the Rocket Models includes a triple basket. Hope this helps!
Will this portafilter fit a Saeco Sirena? I am looking for a bottomless portafilter for a Sirena. Thanks
A shopper on Aug 24, 2012
Best Answer:Unfortunately we do not offer a bottomless portafilter that is compatible with the Saeco Sirena. Though they are both 58mm, the fit of the Bottomless Portafilter for Rocket Models does not work with the Sirena.
I looked at these bottomless portafilter for years and dismissed the whole idea as a gimmick. I was wrong. Yes, opening up the portafilter gives you a clearer picture of your grind and tamp (and your screwups in that department), so this is a teaching tool of sorts. But more importantly, allowing your shot to flow freely wherever your shower screen and gravity takes it somehow yields a shot with an enormous amount of crema you will never see with a conventional portafilter. In addition, because your portafilter basket is not sitting in a closed metal holder, you do not get an accumulation of coffee oil and similar grunge in your portafilter. Cleaning is a snap because other than the accumulation in the basket itself, there really isn't anything to clean.
Just one downside - on occasion you will get some 'strays' that find their way through the puck. These may just make the inside of your shot glass or cup look funky, or they may even create little aerosol jets in odd directions - on your counter, all over your shiny Rocket machine, perhaps on you if you happen to be standing in the wrong place at the wrong time. Not a big deal, and just "nature's way of telling you something's wrong" with your technique, that your grinder burrs are getting worn and not giving you the most uniform grind in the world, or tipping up some other flaw.
Not sure there is any other single accessory you can buy - for any price, and certainly for under a hundred bucks - that will so radically improve your shots and your espresso making experience. Get one! (Posted on 9/2/2015)
FantasticReview by JKM
I using for single shot with the single portafilter basket now. For back-flashing, I use permanently the single portafilter (comes with the Rocket) with the blind basket so no need to switch the baskets. (Posted on 11/10/2014)
Very pleased!!!!Review by James M.
I'm very happy with my purchase....everyone should get one of these portafilters! It has made the Crema thick and rich compared to my double or single spout portafilters! I find it very forgiving especially with an over pressured tamp. Good price,good quality and very nice people to deal with...I certainly will deal with Seattle coffee gear again!
If you don't own one,you're doing yourself a great disservice when pulling an espresso shot or making a cappuccino or latte!
Thank you SCG (Posted on 10/9/2014)
Total necessity Review by Z@K!
I bought this because I thought it looked cool when it pours, but it turns out to be an absolutely necessary component in making the perfect shot of espresso. It allows you to fine tune by letting you see if you are grinding your beans too course or too fine (it sprays everywhere when it's too course), or if you are packing your basket too hard. I had no idea what a necessity it was until after I bought it. If you are serious about coffee you must have one of these! (Posted on 5/26/2014)
A must haveReview by Robert
I use the bottomless daily (unless I am pulling the shot into two cups, then I use the double spouted). Great diagnostic tool for adjusting grind or when switching coffee. It also makes it easier to identify when to stop a shot.
This portafilter also allows you to experiment with other filter manufacturers that are deeper than the stock double. (Posted on 4/12/2013)
Excellent qualityReview by Kim
I got this as part of the package for purchasing a Rocket espresso machine. It is beautiful and matches the single and double portafilters included with the machine. I can believe this item is worth about $70. Commercial quality. (Posted on 9/16/2012)
Fantastic!Review by Daniel J
Started using this portafilter to improve my shot pulls. A little messy when first dialing in a grinder (espresso can shoot everywhere if the grind is too coarse), but once the grind is close to where it should be this item works well to tell you what adjustments need to made.
The feedback I received from this portafilter improved my pulls more than anything else to date.
Easy To Use, Commercial Grade, Easy To Clean
(Posted on 2/17/2012)
good gearReview by triple shot
love this triple shot portafilter for my rancilio machine.
works very nicely !
Easy To Use, Easy To Clean, Great Taste, Commercial Grade
(Posted on 3/17/2011)
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