Questions tagged [tamping]

A step in the espresso brewing process where pressure is forced upon ground coffee to form a tightly compacted puck in the portafilter basket.

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Why is tamping necessary for espresso machines but not mokas?

Why is tamping necessary for espresso machines but not mokas? Kingston's How to Make Coffee: The Science Behind the Bean, on how to use a moka, says: Fill the funnel with enough finely ground coffee ...
3
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1answer
136 views

How much leverage pressure is it needed to compress coffee for an espresso?

Some espresso machines come with a lever to compact the ground coffee before the espresso starts the brewing, other machines do the compacting part by themselves. How much leverage or pressure is it ...
3
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1answer
274 views

How to avoid channels when pouring espresso

I've been having issues with my espresso pouring too fast, and I think I'm getting channels (uneven pour, sometimes one side gets blonde then watery pretty quickly). I'm paying a lot of attention to ...
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vote
1answer
136 views

Can my tamping method damage the basket or portafilter?

I have developed the following tamping method: press the grinds with the tamper without much force, to smoothen it leave the tamper in the basket holding the tamper and the portafilter together, ...
5
votes
2answers
106 views

When should I tamp the coffee?

I have a Sage Dual Boiler coffee machine, using the stock portafilter and baskets. Should I tamp the coffee in the basket and then insert into the portafilter, or insert the basket first into ...
5
votes
1answer
342 views

Ideal Way to control shot extraction with Gaggia Classic

Wanted to know if anyone has a really good, possibly verified method of controlling shot preparation and extraction with an unmodified Gaggia Classic espresso machine. I don't have, nor do I want to ...
14
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2answers
2k views

What is the impact of espresso tamper base shape?

As I shop for a new espresso tamper, I see that there are a dizzying array of options for the shape of the base (i.e., the shape of the part that contacts the grounds). Some shapes include convex ("...
8
votes
1answer
338 views

What is essential for a proper tamp?

There are competing theories as to what you should do when tamping grounds in a portafilter. Some of these include: 30 lbs. of pressure, 90* angle Knocking the side of the portafilter with the tamper ...
8
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2answers
2k views

How do I know how hard to tamp my coffee?

For someone without an expensive machine that can regulate the pressure when tamping, how can I know how hard to tamp, and if I'm tamping too hard? I make espresso with a counter-top machine, and I ...
20
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3answers
1k views

How important is tamping coffee for an espresso machine

I observe that coffee servers (I refuse to use the term barista) will apply pressure to the coffee grounds using a variety of methods and pressure. This seems to vary wildly and I'd like to know how ...