Quite a number of things have the potential to give you "creaminess" on the palate.
- High mash temp
- Unmalted grains
- Yeast strain
- Yeast in suspension
- ...more, no doubt
Really depends on what kind of creaminess you're looking for.
Mate im going to have to say no, no, no and no to that.
Creaminess is a perception thing and something very hard to achieve.
Im not a trumpet blower but for the purpose of this topic i will tell my story. I have recieved coments on my beers from beer judges and friends regarding a "creaminess" they cant get in their beers. I tend to agree as i notice a difference when drinking beers from a case swap or the like. I et a creaminess from REALLY good comercial beers and to me this is a sign of freshness.
I usually mash cool (under 65 deg)
I use bugger all unmalted grains
Yeast strain.....mmmmm possible
Yeast in suspention = chalkiness not creaminess to me.
But............ i think your close.
I think lack of break and protein material in the finnished beer adds to a smoothness in the beer.
I think creaminess is a quality that comes to a brewers beers when they perfect and master their brewing system, simple or complex... doesnt mater, and brew by feel and instinct over theory and instruction.
I also think creaminess comes with the water you use, and how you treat said water for the beer you make. Beer styles are a product of the regional water available to brewers. Now days you can adjust your water easily, and since moving to an area with clean soft water, my beers have improved out of site. I do add large amounts of brewing salts to my mash and sparge water depending on the beer style i am brewing and the water profile im trying to replicate. IT is like milk sometimes but the beers are bright clear and the beers...... well, they are creamy smooth!
The Dortmunder i have on tap has this fluffy, soft, light but full mouth feel that just ends up as creamy. Its delightfull.
I think ballance in the finnished beer also helps. If i had another 5 IBU in there it would add a harshness that would detract from the creaminess.
Saying that i thing creaminess is a combination of all components involved in brewing. If its creamy........ you have got it really right!
not all of mine a creamy......some are thin, some are heavy, but when they are, god damn they are good!