I lost my grain steeping back and I won't be able to pick up a new one before brew day. Are there any easily available replacements that I can use instead?
You can buy paint strainers or any type of cheese clothe for that matter. Way cheaper than those bags anyway. You can get 25 square feet for around $6 at homedepot
+1 for paint strainers, but +10 for just throwing the grains in the watter and pouring through a kitchen strainer. I never used a grain bag until I set up my igloo cooler mash tun (I don't have a false bottom on it) for my PM's.