Calculate all six eight-person targets
This worked case enters eight diners in the Christmas dinner quantity calculator, keeps all six visible starting rates and adds no named leftover equivalents.
| Dish | Editable rate | Eight-person target | Basis |
|---|---|---|---|
| Potatoes | 250 g | 2,000 g | Raw potatoes |
| Vegetables | 160 g | 1,280 g combined | Combined raw vegetables |
| Stuffing | 75 g | 600 g | Prepared stuffing |
| Gravy | 150 ml | 1,200 ml | Prepared gravy |
| Pigs in blankets | 2 pieces | 16 pieces | Whole pieces |
| Sauce | 30 ml | 240 ml | Prepared sauce |
These are disclosed planning assumptions, not a claim that every guest wants every item. Change eaters per row, rate and named extras for the actual party. The 1,280 g vegetable output is one combined total, not 1,280 g for each vegetable.
Round two dated products on the same basis
These retailer listings were captured on 3 September 2026. Recheck the current page and physical label because product size, count, ingredients, availability and instructions can change.
| Target | Captured product | Whole-pack arithmetic | Result boundary |
|---|---|---|---|
| 2,000 g raw potatoes | Tesco Maris Piper Potatoes 2.5 kg | ceil(2,000 ÷ 2,500) = 1 pack | 500 g raw arithmetic surplus; not guaranteed cooked leftovers |
| 16 pigs in blankets | Tesco 12 Pigs in Blankets 240 g | ceil(16 ÷ 12) = 2 packs | 24 bought pieces; 8-piece arithmetic surplus before real cooking and service |
The pigs-in-blankets comparison uses the stated piece count, not a 240 g mass conversion. A different 240 g product may contain a different number of pieces. Dry stuffing weight and gravy-granule weight still cannot be compared directly with prepared-gram or prepared-millilitre targets without exact supported yields.
Compare an extension leaf with two tables
Create two complete revisions in the small-room table proof. Candidate A uses the real main table with its exact extension leaf installed under the maker instructions. Candidate B uses two real tables only if their stability, heights, place settings and routes pass.
| Proof row | Candidate A: extension leaf | Candidate B: two tables |
|---|---|---|
| Eight places | All chairs and complete settings staged around the extended table | Private seat IDs assigned across both tables without isolating a guest by assumption |
| Furniture evidence | Leaf, locks, supports and maker capacity checked | Each table stable; no improvised bridge or unsupported shared surface |
| Guest access | Every occupied chair, door and agreed aid footprint tested | Route between tables remains usable when all chairs are occupied |
| Service | All vessel footprints and reach decisions placed | Duplicate or owner-led service route proved for both tables |
| Dirty return | Incoming route closes before returns begin | Both table routes merge only at a named, non-conflicting handover |
| Overall state | BLOCKED until real full-state rehearsal | BLOCKED until real full-state rehearsal |
Do not pick the candidate from arithmetic alone. Use the same eight guest needs, vessels, doors and service revision in both tests, then choose the arrangement that physically passes with the fewest unsupported movements.
Stage four eight-person fridge peaks
Measure the exact packs and containers in the four-snapshot fridge planner. Eight portions can enlarge prepared containers and leftovers even when the shopping bags initially fit.
- S1 after shopping: exact chilled packs, protected controlled food and ordinary household contents.
- S2 defrosting: exact main and containment under its label-led plan, with everything that must remain chilled.
- S3 make-ahead peak: verified prepared dishes in final containers plus retained unopened food.
- S4 leftovers: only admitted batch containers with complete labels, alongside normal retained food.
List each object once per snapshot and preserve protected placement. Area below 100% can still fail when real widths, depths, heights, door bins, circulation or separation requirements collide. Physically stage all four states.
Leave the one-oven sequence evidence-led
The eight-person targets do not provide an oven schedule. Build one only after the exact products, complete recipes, tray footprints, appliance instructions and final checks exist.
| Row | Target or intention | Schedule state |
|---|---|---|
| Main | No main selected by this side-dish example | UNKNOWN—exact cut, size, tray and instructions missing |
| Potatoes | 2,000 g raw | UNKNOWN—finished method, tray and oven block missing |
| Stuffing | 600 g prepared | UNKNOWN—exact yield, container and method missing |
| Pigs in blankets | 16 planned pieces from two captured 12-piece packs | PROVISIONAL—physical labels and exact retained quantity decide tray and instructions |
| Final service | Eight places under one selected room revision | UNKNOWN until food, vessels, routes and plates have complete paths |
Resolve conflicts through the one-oven method. Do not raise settings, shorten checks or assume two trays can share merely because the eight-person target is known.
Prove the hob and a lost-ring fallback
Carry every exact pan job into the hob capacity plan. Eight-person batches may change pan footprints, handle sweeps and loaded transfers compared with the six-person case.
- Measure every exact pan base, widest footprint, handle sweep, lid and utensil action.
- Stage each proposed simultaneous state with the appliance off.
- Keep controls visible and every loaded landing and transfer route available.
- Assign one owner to each required observation and action.
- Remove one ring in rehearsal and mark every dependent state BLOCKED.
- Use only a preverified compatible alternative or remove/resequence an optional supported row.
Do not reduce the eight-person quantity silently to fit a pan or increase a heat setting to recover time. Change the accepted menu, batch or sequence through exact supported evidence.
Split service without splitting the evidence
One long table and two tables create different service patterns. Match every finished yield to a tested vessel and use owner-led refills where duplicate full vessels would crowd the room.
- Keep shopping target, finished yield and service load separate.
- Give each public and reserve vessel a batch ID, utensil, table position and refill owner.
- Do not top new food onto an older remainder and erase service histories.
- Do not make controlled guests pass a shared vessel or utensil when that breaks the agreed plan.
- Carry private plate IDs through a direct handover where the table arrangement needs it.
- Close both candidate table routes into the same clean-service and dirty-return plan.
The 1,200 ml gravy intention may use smaller tested jug loads, but each exact variant, pan method, working fill and refill history remains separate.
Run the two-candidate cold rehearsal
- Recheck the two dated retailer listings and physical packs; record exact ingredients, storage and current instructions.
- Stage Candidate A with the real extension leaf, eight chairs, eight settings and every empty service vessel.
- Stage Candidate B with both real tables and the identical guest, vessel and route evidence.
- Physically pack all four fridge snapshots and run the instruction-led oven ledger with unknowns preserved.
- With the hob off, stage the eight-person pans, lids, controls and transfers, then remove one ring.
- Block one route between Candidate B’s tables, detach one controlled plate marker and remove one helper.
- Select a seating candidate only if every required guest, food, service, dirty-return and escape route passes at one revision.
The rehearsal tests arithmetic, furniture, storage packing, objects, routes, capacity and handovers. It does not prove product availability, price, appetite, cooking, temperature, allergen control or food safety.
Questions people ask
How many roast potatoes do I need for eight people?
The editable starting assumption gives 2,000 g raw potatoes. Change the eater count, rate and named extras for the actual party, then compare with current raw-potato packs on the same basis.
How much gravy do I need for eight people?
The editable starting assumption gives 1,200 ml prepared gravy. Verify exact recipe or product yields, dietary variants, pan methods and tested jug working fills before service.
How many pigs in blankets do I need for eight?
The editable starting rate gives 16 pieces. Two captured 12-piece packs would buy 24 pieces, leaving an eight-piece arithmetic surplus; recheck the live product and allocate that surplus deliberately.
Is one long table or two tables better for eight?
Neither is automatically better. Stage both real candidates with all eight occupied chairs, complete settings, vessels, access needs, incoming service, dirty returns and escape route, then select only a fully passing revision.
Can these quantity figures become cooking times?
No. They are editable shopping targets. Current exact products, complete recipes and appliance instructions control preparation, cooking, completion and service.
Sources and checks
- Food Standards Agency — cooking your food — current household guidance on exact recipe or packet instructions and completion checks
- Food Standards Agency — chilling — current household fridge, cooling and leftovers guidance; not a physical fit formula
- Tesco — Maris Piper Potatoes 2.5 kg — 2.5 kg raw-potato listing captured 3 September 2026; recheck live listing and physical pack
- Tesco — 12 Pigs in Blankets 240 g — 12-piece listing captured 3 September 2026; recheck availability, label and instructions