Home Reactor Kit: Cold Brew Kit

Everything you need to go from zero to cold brew. No grounds, no gear, no guesswork. Your reactor comes fully loaded: two brew bags of our coarse-ground coffee sealed inside a heavy-duty mason jar with a handle lid. Drop, steep, pour, repeat.

Here's how it runs: fill the jar with cold water, submerge a brew bag, seal the lid, and let it steep in the fridge for 12–16 hours. Pull the bag, and you've got a smooth, low-acid concentrate ready to cut with water, milk, or whatever keeps you upright. The jar is the brewer, the storage, and the vessel you drink from — the handle lid means it travels with you.

When your two packs run dry, the reactor doesn't. Reload with our Reactor Pack refills and keep the same jar running indefinitely. Less waste, more brew.

What's inside:

• (2) cold brew filter packs - 6 oz each, coarse-ground the day they ship
• (1) mason jar brewing vessel
• (1) handle lid for brewing, sealing, and sipping

Born in uncertainty. Brewed in your fridge.