What size bear canister do I need?

Capacity is usually measured in days of food for one person. Smaller canisters in the BearVault BV425/BV450 range suit solo overnight or weekend trips, while larger models like the BV500 or Counter Assault Bear Keg are sized for roughly a week of food or for splitting a couple's supplies. Verified-purchase reviewers consistently note that food bulk, not just trip length, drives the size you actually need.