| 10 Products | May 2025 | May 2026 | Change |
| Birchall Tea Birchall Peppermint Leaves Tea Bags () | £4.30 | £6.50 | + £2.20 51.2% increase |
| | £4.50 | £5.00 | + £0.50 11.1% increase |
| | £4.10 | £7.99 | + £3.89 51.2% increase |
| Birchall Tea Birchall Lemongrass & Ginger 15 Prism Tea Bags () | £3.89 | £6.04 | + £2.15 55.3% increase |
| | £4.50 | £5.00 | + £0.50 11.1% increase |
| | £3.28 | £7.07 | + £3.79 55.3% increase |
| Birchall Tea Birchall Great Rift Breakfast Blend 15 Prism Tea Bags () | £6.25 | £5.00 | - £1.25 -20% decrease |
| | £4.50 | £5.00 | + £0.50 11.1% increase |
| | £8.00 | £5.00 | - £3.00 -20% decrease |
| Birchall Tea Birchall Virunga Earl Grey 15 Prism Tea Bags (46.9g) | £3.84 | £7.00 | + £3.16 82.3% increase |
| | £4.40 | £5.00 | + £0.60 13.6% increase |
| | £3.28 | £8.99 | + £5.71 82.3% increase |
| Birchall Tea Birchall Mao Feng Green Tea Bags () | £6.14 | £6.15 | + £0.01 0.2% increase |
| | £4.30 | £5.00 | + £0.70 16.3% increase |
| | £7.98 | £7.29 | - £0.69 0.2% decrease |
| Birchall Tea Birchall Great Rift Decaf Everyday Tea Bags () | £8.76 | £6.00 | - £2.76 -31.5% decrease |
| | £6.00 | £6.00 | £0.00 No change |
| | £11.52 | £6.00 | - £5.52 -31.5% decrease |
| Birchall Tea Birchall Green Tea & Peach Tea Bags () | £4.75 | £5.00 | + £0.25 5.3% increase |
| | £4.50 | £5.00 | + £0.50 11.1% increase |
| | £5.00 | £5.00 | £0.00 5.3% increase |
| Birchall Tea Birchall Great Rift Decaf 15 Prism Tea Bags () | £5.90 | £7.00 | + £1.10 18.6% increase |
| | £4.80 | £4.80 | £0.00 No change |
| | £6.99 | £9.19 | + £2.20 18.6% increase |
| Birchall Tea Birchall Cederberg Redbush Tea Bags () | £4.50 | £5.00 | + £0.50 11.1% increase |
| | £4.50 | £5.00 | + £0.50 11.1% increase |
| | £4.50 | £5.00 | + £0.50 11.1% increase |
| Birchall Tea Birchall Camomile Flowers Tea Bags () | £6.24 | £6.50 | + £0.26 4.2% increase |
| | £4.50 | £5.00 | + £0.50 11.1% increase |
| | £7.98 | £7.99 | + £0.01 4.2% increase |
