Knock Box Size Guide

Q: Which knock box size should I choose?

Choose Small if you have limited counter space or only make 1–2 coffees a day. Choose Medium if you want the safest everyday option for most home setups. Choose Large if you make multiple coffees a day or prefer more room for knocking.

Q: Which size is best for a 58mm portafilter?

We recommend Medium or Large for 58mm portafilters, as they offer a more comfortable fit and more knocking space. Small is not recommended for 58mm portafilters.

Q: Which size is best if I am not sure?

If you are unsure, we recommend Medium . It offers a balanced footprint, works well for most home espresso setups, and is suitable for both 54mm and 58mm portafilters.

Using a 58mm portafilter?

We recommend Medium or Large for a more comfortable fit.
Small is not recommended for 58mm portafilters.

Small

Best for compact setups and occasional use

1–2 coffees a day
Smaller counters
Compact setups
Not recommended for 58mm portafilters

Medium

Our most versatile everyday size

Daily home espresso
Balanced footprint
Suitable for 54mm and 58mm portafilters
Great all-round choice

Large

Best for busier routines and more knocking space

Multiple coffees a day
Larger counters
Comfortable for 58mm portafilters
Less frequent emptying

Quick Recommendation

Choose Small

if you have a compact setup and do not use a 58mm portafilter.

Choose Medium

if you want the safest everyday option.

Choose Large

if you use a 58mm portafilter often or make multiple coffees a day.

FAQs

Which knock box size should I choose?

Choose Small if you have limited counter space or only make 1–2 coffees a day. Choose Medium if you want the safest everyday option for most home setups. Choose Large if you make multiple coffees a day or prefer more room for knocking.

Which size is best for a 58mm portafilter?

We recommend Medium or Large for 58mm portafilters, as they offer a more comfortable fit and more knocking space. Small is not recommended for 58mm portafilters.

Is the Small knock box suitable for everyday use?

Yes, Small works well for compact coffee corners and occasional use. It is best suited to smaller setups, 54mm portafilters, or users who make fewer coffees each day.

How often will I need to empty my knock box?

This depends on your puck size and dose, but as a guide: Small holds around 2–4 pucks, Medium holds around 5–8 pucks, and Large holds around 9–12 pucks. Capacity may vary slightly between different designs, so please refer to the individual product page for the most accurate details.

Which size is best if I am not sure?

If you are unsure, we recommend Medium. It offers a balanced footprint, works well for most home espresso setups, and is suitable for both 54mm and 58mm portafilters.