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The short answer: Effectively tied at A/90 vs A/90 on the v15 rubric. Both are A-tier whole-prey-model raw recipes. Answers Pet Food is the only US commercial raw brand built around raw-fermented-food philosophy — whey, butter, and kefir with four named Lactobacillus strains supply natural probiotic load at densities synthetic supplementation can’t match. Stella & Chewy’s leads with chicken in freeze-dried format with conventional probiotic supplementation and broader retail distribution across PetSmart, Petco, Chewy.com, and Amazon. Pick on format (frozen vs freeze-dried), protein (beef vs chicken), and probiotic philosophy (natural fermentation vs synthetic supplementation).

The scores

Answers Pet Food Detailed Beef Formula: A (90/100) — Beef, Beef Heart, Beef Liver, Beef Kidney, Ground Beef Bone.

Stella & Chewy's Chewy's Chicken Freeze-Dried Patties: A (90/100) — Chicken (Includes Ground Chicken Bone), Chicken Liver, Chicken Gizzard, Pumpkin Seed, Organic Cranberries.

How the ingredients compare

The top-five ingredients reveal the formulation split between these two products:

Answers: Beef, Beef Heart, Beef Liver, Beef Kidney, Ground Beef Bone

Stella & Chewy's: Chicken (Includes Ground Chicken Bone), Chicken Liver, Chicken Gizzard, Pumpkin Seed, Organic Cranberries

Both products earn effectively the same v15 score, but the ingredient lineups tell different stories about how they got there — that is where the actual pick decision lives.

Where Answers pulls ahead

Raw-fermented dairy layer with four named Lactobacillus strains: Answers includes whey + butter + kefir with four named strains (L. bulgaricus, L. acidophilus, Leuconostoc mesenteroides, L. lactis) at densities synthetic probiotic supplementation can’t match. Raw kefir routinely carries 10-100 billion CFU per cup. Stella & Chewy’s includes guaranteed-stability probiotics in the supplement section (typically 10-100 million CFU per scoop — structurally meaningful but quantitatively lower than fermented dairy). For dogs with chronic GI sensitivity or post-antibiotic dysbiosis benefiting from high probiotic load, Answers is the structurally specialized pick. Shop on Amazon →

Frozen-raw format retains maximum nutritional intactness: Answers is frozen raw — no sublimation step. Stella & Chewy’s patties are freeze-dried raw — the sublimation drying preserves substantially more structure than kibble extrusion or air-drying but is one process step removed from purely frozen raw. For owners specifically prioritizing maximum nutritional preservation, frozen raw sits one rung higher on the format-preservation hierarchy. Stella & Chewy’s also sells frozen-raw patties (separate product line); the freeze-dried patties reviewed for comparison are the more widely-distributed format.

Beef-based recipe for owners avoiding chicken: Answers Detailed Beef Formula uses beef — useful for dogs with chicken protein sensitivity. Stella & Chewy’s offers a Chick Chick Chicken variant (chicken-based) and a Stella’s Super Beef variant (beef-based); the comparison here uses the chicken patties as the widely-distributed default. For owners specifically wanting beef-based raw, Answers Detailed Beef is structurally aligned; for owners wanting Stella’s with beef, the Super Beef variant exists.

Where Stella & Chewy's holds its own

Freeze-dried format flexibility + broad retail distribution: Stella & Chewy’s freeze-dried patties are shelf-stable — no freezer storage required, rehydrates in 1-2 minutes. Distribution covers PetSmart, Petco, Chewy.com, Amazon, and independent pet retailers nationwide. Answers requires freezer storage and is distributed primarily through independent pet retailers and DTC freezer shipping; broad retail availability is limited. For owners wanting raw-feeding-philosophy with kibble-replacement convenience and broad retail availability, Stella & Chewy’s freeze-dried is the structural pick. Shop on Amazon →

Established multi-decade raw-pet-food brand track record: Stella & Chewy’s has been operating since 2003 with consistent product-line expansion (raw, freeze-dried, kibble-with-raw-coating, treats) and broad veterinarian-and-trainer recommendations. Answers Pet Food (Lystn LLC) has a shorter brand history with a notable 2018 FDA Salmonella regulatory dispute (see the Answers review for full context). For owners specifically prioritizing longer brand track record and broader retailer / veterinarian community endorsement, Stella & Chewy’s carries the longer history.

No dairy in standard formulations: Stella & Chewy’s standard freeze-dried patties are dairy-free, appropriate for dogs with confirmed dairy allergy or severe lactose intolerance. Answers Detailed Beef Formula includes whey, butter, and kefir — the fermented-dairy layer is structural to the brand’s philosophy but contraindicated for dairy-allergic dogs. For owners feeding dairy-allergic dogs but wanting raw whole-prey-model nutrition, Stella & Chewy’s is the structural alternative.

The bottom line

Effectively tied at A/90 vs A/90 — the pick comes down to format, probiotic-philosophy, and retail-availability priority. Pick Answers Pet Food for the uniquely deep raw-fermented-dairy layer (whey + butter + kefir with four named Lactobacillus strains supplying natural probiotic load), frozen-raw maximum nutritional preservation, and beef-based recipe for chicken-sensitive dogs. Pick Stella & Chewy’s for freeze-dried shelf-stable convenience without freezer storage, broad retail distribution (PetSmart, Petco, Chewy.com, Amazon), established multi-decade brand track record, and dairy-free formulation for dairy-allergic dogs.