[Eisenstein]

What is a gravity type reverse osmosis system?

[roflyear]

I don't think it's technically RO but "Zero Water" is absolutely fine, pretty inexpensive, works well! Not as convenient as a $200 (ish) under the sink setup but way more accessible.

[Eisenstein]

Zero Water deionizes water. It removes anything inside of water with an charge, which is a lot of things, but not everything. It gets depleted pretty quickly if there are a lot of minerals in the water and is generally used after RO because RO is cheap compared to DI resin.

[roflyear]

yeah good points! I use an undersink RO system.

[Eisenstein]

What do you use for storage?

[roflyear]

For coffee? Just the bags, or freeze if I'm keeping them around for a long time. Tape over the valve and freeze.