I apologize in advance for the complete noob question but here it goes. I just purchaed a 2 gallon Igloo cooler in Walmart and plan on trying my hand at my first partial mash. I started this hobby by doing a number of coopers kits but eventually wanted more of a challenge and so moved on to steeping grain + extract brewing, which I've been doing for the past several years. I really enjoy the results I've been getting with my steeping+extract process but feel the need to at least try a partial mash. My question is, in using the round 2 gallon cooler, which has a spigot at the botton, do I need to place my grains in a grain bag or can they just go straight into the cooler. My worry is that if the grains are not in a grain bag, when trying to drain the liquid from the spigot it will become plugged with the grain. Any advice? Again, sorry for the simple beginners question and if this has been answered a thousand times, just point me in the right direction and I can read about it on my own. Thanks.