I have had the same issue with the BB Kits. If you calculate the OG given the ingredients it is always lower than they state on the instructions.
Use these values in your calculations:
LME is 1.036 per pound per gallon use 36 points per gallon
DME/Sugar is 1.040 per pound per gallon use 40
Specialty Grain is 1.025 per pound per gallon use 25
To Calculate for the BB Imperial Pal Ale:
6.6 lb LME
1 lb of DME
1 lb of Sugar
Sp. Grains 1.75 lbs
Please do not interpret what i say wrongly. Extracts make great beers. many awards have been given to extract beers. But extract is expensive. Perhaps your suppliers have been shaving mighty close on thier kits. When you do an extract beer and they say the OG should be thus and such, you have no control over that. It is the supplier that is responsible for you reaching the stated OG, not you. Your supplier appears to be cutting you short. I personally find it abhorent that suppliers consistantly cut their patrons short on recipes. One should, in my opinion, contact the supplier and clue them in on the shortfall. After all in an extract brew, the OG is the supplier's responsibility, not yours.
I agree....NB kits always hit the OG...other kits...not so much!
__________________ South Mountain Brew...East of the Shawangunks; West of the Walkill...
On Tap: Nugget Niner (Troeg's clone) Secondary: Dead Guy clone