The Brief
When Will Carr came to Dr. Jenna Park in early 2022, the brief was deceptively simple: build a protein bar with bison as the primary protein source, no seed oils, no soy isolate, no artificial sweeteners, and a shelf life long enough to survive a gym bag in a Texas summer.
"I've formulated dozens of bars," Dr. Park says. "Most of the clean-label constraints I hear from founders disappear the first time they see the production cost or the texture. Will was the first client who held the line on every single constraint for the full 14 months."
The Binding Problem
Conventional protein bars rely on a combination of sugar alcohols (usually glycerin), palm oil or fractionated coconut oil, and in some cases vegetable glycerin to bind the matrix and maintain moisture. These are effective binders. They're also the reason most bars either feel greasy or leave a strange aftertaste.
Genesee's binding matrix uses three components:
1. Bison tallow — the primary fat carrier. Higher melting point than plant oils means it sets firm at room temperature and re-softens predictably at body temperature. 2. Date paste (organic, whole-fruit) — provides soluble fiber and natural sugars for binding without adding glycerin or maltitol. 3. Tapioca starch — a minimal amount (under 3%) to stabilize the matrix during temperature fluctuation.
Getting the ratio right required 23 test batches.
The Protein Blend
Bison is a complete protein source with all nine essential amino acids. The challenge is bioavailability in a compressed bar format. Raw bison doesn't bind well; it needs to be processed into a ground or concentrated form that integrates with the fat matrix without denaturing the amino acid profile.
Genesee uses a minimally processed bison protein concentrate—dried and ground at low temperature—that preserves the natural amino acid ratio while achieving the right texture density. The process is proprietary but the principle is simple: lower heat, longer time, better protein.
The Shelf-Life Test
"The heat stability requirement was the most difficult constraint," Dr. Park says. "A bar with tallow and no artificial preservatives has a natural oxidation window. We had to get the water activity low enough to inhibit microbial growth while keeping the moisture content high enough that the bar doesn't feel like eating chalk."
The solution was a two-stage drying process in the co-packing line combined with oxygen-absorber packaging. The current shelf life is 12 months at room temperature, 18 months refrigerated.
What We Didn't Use
Sometimes the story of a formulation is what you excluded. Here's what Genesee bars don't contain:
- No sunflower oil, canola oil, or palm oil
- No soy protein isolate or concentrate
- No maltitol, sorbitol, or other sugar alcohols
- No "natural flavors" (a regulatory term that can include hundreds of synthetic compounds)
- No carrageenan
- No artificial sweeteners
Every ingredient has a name you can look up. That was the brief, and that's what we delivered.